Sony is betting big on its latest console with sales estimates of 3 million PlayStation 4s by the end of the year.

According to a new report from Bloomberg, Sony predicts that it will sell 3 million PlayStation 4 units by the end of 2013, and 5 million units by March 2014.

“This is a marathon, not a sprint, but getting out to a nice start is a good thing to do,” said JackTretton, president and chief executive officer of Sony's U.S. computer entertainment division. “That hurdle has been cleared. We’re very, very confident we’re in great shape.”

Sony is hoping that the PS4 will have an advantage against its competition -- Microsoft's Xbox One -- with an earlier release date. The PlayStation 4 is set to release November 15 in the U.S. and November 29 in Europe at $399 while the Xbox One has a November 22 release date in the U.S. and is priced $100 higher than the PS4 at $499.

“We’re very comfortable with it,” said Tretton. “I’m excited about next week to be able to talk about what was sold as opposed to what we may sell.”

Last week, Amazon already had a warehouse full of PS4s ready to ship come release day. The image below was posted November 7 on the Facebook page Amazon Video Games.

If the lower price and earlier release date aren't enough, Sony is also hoping the PS4's internals will draw more sales over the Xbox One. Last week, Wired posted a video that showed off the PS4's innards, and saw updates such as an x86 CPU architecture and an integrated power adapter.

The video breakdown also revealed a 500GB hard disk drive; 8GB of GDDR5 memory (eight on each side of the main processor for a total of 8GB); a secondary processor for network processing with low power consumption; two heat pipes for the heat sink; an 85-mm-diameter centrifugal fan, and ports for USB 3.0, Ethernet, HDMI, optical audio output and an AUX connector for the camera.

If you're still debating between the PS4 and an Xbox One, some Xbox One internals are an APU with eight x86-64 cores; 8GB of DDR3 RAM; a GPU based on an AMD GCN architecture (it just got a GPU bump to 853MHz, up from the previous 800MHz); a 500 GB non-replaceable hard drive; three USB 3.0 ports; HDMI, and a Blu-ray optical drive.

Will you be helping Sony reach its holiday sales goal of 3 million, or wait it out for the Xbox One?